18157465

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{3851}}^1$

素因数の和:3920

約数の個数: 16

約数和(自身を含む): 23296896

約数和(自身を除く): 5139431

約数列:

[1, 5, 23, 41, 115, 205, 943, 3851, 4715, 19255, 88573, 157891, 442865, 789455, 3631493, 18157465]

約数ペア:

[(1, 18157465), (5, 3631493), (23, 789455), (41, 442865), (115, 157891), (205, 88573), (943, 19255), (3851, 4715)]